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maksim [4K]
3 years ago
5

Somebody help with this please

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0
Covert standard form to slope-intercept form
4x + 7y + 3 = 0
7y = -4x - 3

y = (-4/7)x - 3/7   so the slope of this line is -4/7

The slope perpendicular to this is - 1 (-4/7)  = 7/4
The required line has equation:-
y - 1 = (7/4)(x - (-2))
y - 1 = (7/4)x + 14/4
y =   (7/4)x + 18/4  That is the answer in slope intercept form

Multiply through by 4

4y = 7x + 18

7x - 4y = 18   in Standard form Answer

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I need help on this problem ​
Vaselesa [24]
The answer is y=3/2x+3

to figure it out:
1. you need to first find the slope of the two points.
3-0/0-(-2)
2. then put them into slope intercept form: y=mx+b. m being your slope and b being your y-intercept.
7 0
3 years ago
mr farmer rectangular land measures 2000 meters by 3000 meters. if he walks around the perimeter of his land, how far does he wa
Travka [436]

Answer:

10000 meters

Step-by-step explanation

To find perimeter you add the length of each side of the shape. Since the land is a rectangle there are two pairs that are parrallel, being 2000 and 3000. Making the distance 2000 + 2000 + 3000+ 3000 = 10000

Hope this helps!

4 0
2 years ago
Use order of operations to make this true <br> 30 18 24 4 = 18
I am Lyosha [343]

Answer:

30 - 18 + 24 ÷ 4 = 18

Step-by-step explanation:

The order of operations is

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Use this word PEMDAS to remember the order of operation

Let us solve the problem

30  18  24  4  = 18

∵ 30 - 18 = 12

∵ 24 ÷ 4 = 6

∵ 12 + 6 = 18

That means put (-) between 30 and 18, (÷) between 24 and 4, then put (+) between 18 and 24

∴ 30 - 18 + 24 ÷ 4

- The first operation is the division

∵ 24 ÷ 4 = 6

∴ 30 - 18 + 6

- Start with 30 - 18 because in addition and subtraction we start

   with who come first

∵ 30 - 18 = 12

∴ 12 + 6

- Finally add them

∵ 12 + 6 = 18

∴ 30 - 18 + 24 ÷ 4 = 18

3 0
3 years ago
Solve each equation for the variable
harina [27]
A=1. Hope this helped!
6 0
3 years ago
Mr. Tyler has 45 books on a shelf in his classroom. If 80% of the books are fiction, how many fiction books are on the shelf?
Scrat [10]

Answer:

36

Step-by-step explanation:

hello

we need to take 80% of 45

\dfrac{80*45}{100}=\dfrac{3600}{100}=36

so there are 36 fiction books

hope this helps

4 0
3 years ago
Read 2 more answers
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